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    <meta charset="UTF-8">
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    <title>Document</title>
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<body>
<script>
    // 1. 利用 new Object() 创建对象

    var obj1 = new Object();

    // 2. 利用 对象字面量创建对象

    var obj2 = {};

    // 3. 利用构造函数创建对象
    function Star(uname, age) {
        this.uname = uname;
        this.age = age;
        this.sing = function () {
            console.log('我会唱歌：' + this.uname);

        }
    }

    var ldh = new Star('刘德华', 18);
    var zxy = new Star('张学友', 19);
    console.log(ldh);
    ldh.sing();
    zxy.sing();
</script>
</body>

</html>
